| ENTITY rolling_curve_pair SUBTYPE OF (planar_curve_pair); END_ENTITY; -- rolling_curve_pair | 
| Entity data types and their attributesitem_defined_transformationname: label; (OPT) description: text; transform_item_1: representation_item; transform_item_2: representation_item; kinematic_pair joint: kinematic_joint; (DER) pair_placement_in_first_link_context: rigid_placement; (DER) pair_placement_in_second_link_context: rigid_placement; planar_curve_pair curve_1: curve; curve_2: curve; orientation: BOOLEAN; rolling_curve_pair - | 
| Global rules for this entity data type- | 
| public interface ERolling_curve_pair extends EPlanar_curve_pair | 
| public class CRolling_curve_pair implements ERolling_curve_pair | 
| public class ARolling_curve_pair extends AEntitypublic ERolling_curve_pair getByIndex(int index)public ERolling_curve_pair getCurrentMember(SdaiIterator it) |